./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-75.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-75.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39440d444684353bf21e24f176d5fedee371419507f0ad109966d3b62ac38d18 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:30:14,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:30:14,967 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:30:14,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:30:14,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:30:14,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:30:14,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:30:14,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:30:14,994 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:30:14,994 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:30:14,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:30:14,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:30:14,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:30:14,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:30:14,995 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:30:14,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:30:14,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:30:14,995 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:30:14,996 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:30:14,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:30:14,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:30:14,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:30:14,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:30:14,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:30:14,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:30:14,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:30:14,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:30:14,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:30:14,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:30:14,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:30:14,998 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:30:14,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:30:14,998 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:30:14,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:30:14,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:30:14,998 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:30:14,998 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:30:14,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:30:14,998 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39440d444684353bf21e24f176d5fedee371419507f0ad109966d3b62ac38d18 [2024-12-02 07:30:15,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:30:15,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:30:15,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:30:15,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:30:15,236 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:30:15,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-75.i [2024-12-02 07:30:17,832 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/data/80cc53c53/5e6f8185894641798135f9943c6b91ed/FLAG35c165077 [2024-12-02 07:30:18,114 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:30:18,115 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-75.i [2024-12-02 07:30:18,125 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/data/80cc53c53/5e6f8185894641798135f9943c6b91ed/FLAG35c165077 [2024-12-02 07:30:18,137 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/data/80cc53c53/5e6f8185894641798135f9943c6b91ed [2024-12-02 07:30:18,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:30:18,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:30:18,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:30:18,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:30:18,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:30:18,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e77ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18, skipping insertion in model container [2024-12-02 07:30:18,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,177 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:30:18,287 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-75.i[916,929] [2024-12-02 07:30:18,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:30:18,496 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:30:18,506 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-75.i[916,929] [2024-12-02 07:30:18,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:30:18,637 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:30:18,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18 WrapperNode [2024-12-02 07:30:18,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:30:18,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:30:18,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:30:18,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:30:18,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,774 INFO L138 Inliner]: procedures = 26, calls = 89, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 720 [2024-12-02 07:30:18,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:30:18,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:30:18,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:30:18,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:30:18,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,801 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,856 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:30:18,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,877 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:30:18,912 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:30:18,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:30:18,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:30:18,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (1/1) ... [2024-12-02 07:30:18,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:30:18,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:30:18,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:30:18,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:30:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:30:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:30:18,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:30:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:30:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:30:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:30:19,094 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:30:19,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:30:20,253 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2024-12-02 07:30:20,254 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:30:20,268 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:30:20,269 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:30:20,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:30:20 BoogieIcfgContainer [2024-12-02 07:30:20,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:30:20,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:30:20,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:30:20,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:30:20,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:30:18" (1/3) ... [2024-12-02 07:30:20,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c111f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:30:20, skipping insertion in model container [2024-12-02 07:30:20,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:18" (2/3) ... [2024-12-02 07:30:20,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c111f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:30:20, skipping insertion in model container [2024-12-02 07:30:20,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:30:20" (3/3) ... [2024-12-02 07:30:20,278 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-75.i [2024-12-02 07:30:20,290 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:30:20,292 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-75.i that has 2 procedures, 293 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:30:20,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:30:20,357 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@13af3b15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:30:20,357 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:30:20,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 293 states, 214 states have (on average 1.514018691588785) internal successors, (324), 215 states have internal predecessors, (324), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-12-02 07:30:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-12-02 07:30:20,384 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:20,385 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:20,386 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:20,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:20,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2134433407, now seen corresponding path program 1 times [2024-12-02 07:30:20,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:20,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225851464] [2024-12-02 07:30:20,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:20,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2024-12-02 07:30:21,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:21,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225851464] [2024-12-02 07:30:21,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225851464] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:30:21,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67467655] [2024-12-02 07:30:21,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:21,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:30:21,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:30:21,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:30:21,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:30:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:21,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:30:21,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:30:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2024-12-02 07:30:21,606 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:30:21,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67467655] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:21,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:30:21,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:30:21,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853798209] [2024-12-02 07:30:21,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:21,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:30:21,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:21,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:30:21,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:30:21,637 INFO L87 Difference]: Start difference. First operand has 293 states, 214 states have (on average 1.514018691588785) internal successors, (324), 215 states have internal predecessors, (324), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2024-12-02 07:30:21,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:21,692 INFO L93 Difference]: Finished difference Result 579 states and 1022 transitions. [2024-12-02 07:30:21,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:30:21,694 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) Word has length 520 [2024-12-02 07:30:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:21,702 INFO L225 Difference]: With dead ends: 579 [2024-12-02 07:30:21,702 INFO L226 Difference]: Without dead ends: 289 [2024-12-02 07:30:21,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:30:21,710 INFO L435 NwaCegarLoop]: 469 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:21,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:30:21,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-12-02 07:30:21,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-12-02 07:30:21,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 211 states have (on average 1.5023696682464456) internal successors, (317), 211 states have internal predecessors, (317), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-12-02 07:30:21,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 469 transitions. [2024-12-02 07:30:21,774 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 469 transitions. Word has length 520 [2024-12-02 07:30:21,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:21,775 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 469 transitions. [2024-12-02 07:30:21,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2024-12-02 07:30:21,775 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 469 transitions. [2024-12-02 07:30:21,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-12-02 07:30:21,787 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:21,787 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:21,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:30:21,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:30:21,988 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:21,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:21,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1892391371, now seen corresponding path program 1 times [2024-12-02 07:30:21,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:21,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610985953] [2024-12-02 07:30:21,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:21,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-12-02 07:30:22,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:22,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610985953] [2024-12-02 07:30:22,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610985953] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:22,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:22,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:30:22,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094498615] [2024-12-02 07:30:22,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:22,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:30:22,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:22,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:30:22,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:22,691 INFO L87 Difference]: Start difference. First operand 289 states and 469 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:22,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:22,803 INFO L93 Difference]: Finished difference Result 854 states and 1389 transitions. [2024-12-02 07:30:22,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:30:22,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 520 [2024-12-02 07:30:22,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:22,810 INFO L225 Difference]: With dead ends: 854 [2024-12-02 07:30:22,810 INFO L226 Difference]: Without dead ends: 568 [2024-12-02 07:30:22,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:22,812 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 450 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:22,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1177 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:30:22,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-12-02 07:30:22,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 292. [2024-12-02 07:30:22,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 214 states have (on average 1.5) internal successors, (321), 214 states have internal predecessors, (321), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-12-02 07:30:22,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 473 transitions. [2024-12-02 07:30:22,855 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 473 transitions. Word has length 520 [2024-12-02 07:30:22,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:22,858 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 473 transitions. [2024-12-02 07:30:22,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:22,858 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 473 transitions. [2024-12-02 07:30:22,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-12-02 07:30:22,869 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:22,869 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:22,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:30:22,869 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:22,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:22,870 INFO L85 PathProgramCache]: Analyzing trace with hash -441001267, now seen corresponding path program 1 times [2024-12-02 07:30:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:22,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684857415] [2024-12-02 07:30:22,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:22,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:23,239 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-12-02 07:30:23,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:23,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684857415] [2024-12-02 07:30:23,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684857415] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:23,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:23,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:30:23,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620702946] [2024-12-02 07:30:23,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:23,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:30:23,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:23,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:30:23,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:23,242 INFO L87 Difference]: Start difference. First operand 292 states and 473 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:23,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:23,343 INFO L93 Difference]: Finished difference Result 870 states and 1413 transitions. [2024-12-02 07:30:23,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:30:23,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 520 [2024-12-02 07:30:23,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:23,350 INFO L225 Difference]: With dead ends: 870 [2024-12-02 07:30:23,350 INFO L226 Difference]: Without dead ends: 581 [2024-12-02 07:30:23,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:23,351 INFO L435 NwaCegarLoop]: 738 mSDtfsCounter, 448 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:23,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1195 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:30:23,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-12-02 07:30:23,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 579. [2024-12-02 07:30:23,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 424 states have (on average 1.4976415094339623) internal successors, (635), 424 states have internal predecessors, (635), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 07:30:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 939 transitions. [2024-12-02 07:30:23,407 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 939 transitions. Word has length 520 [2024-12-02 07:30:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:23,408 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 939 transitions. [2024-12-02 07:30:23,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 939 transitions. [2024-12-02 07:30:23,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-12-02 07:30:23,413 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:23,413 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:23,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:30:23,414 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:23,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1487271435, now seen corresponding path program 1 times [2024-12-02 07:30:23,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:23,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670980246] [2024-12-02 07:30:23,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:23,713 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-12-02 07:30:23,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:23,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670980246] [2024-12-02 07:30:23,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670980246] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:23,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:23,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:30:23,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273422101] [2024-12-02 07:30:23,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:23,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:30:23,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:23,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:30:23,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:23,715 INFO L87 Difference]: Start difference. First operand 579 states and 939 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:23,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:23,854 INFO L93 Difference]: Finished difference Result 1721 states and 2793 transitions. [2024-12-02 07:30:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:30:23,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 520 [2024-12-02 07:30:23,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:23,863 INFO L225 Difference]: With dead ends: 1721 [2024-12-02 07:30:23,863 INFO L226 Difference]: Without dead ends: 1145 [2024-12-02 07:30:23,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:23,866 INFO L435 NwaCegarLoop]: 460 mSDtfsCounter, 415 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:23,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 906 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:30:23,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-12-02 07:30:23,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 691. [2024-12-02 07:30:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 536 states have (on average 1.5149253731343284) internal successors, (812), 536 states have internal predecessors, (812), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 07:30:23,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1116 transitions. [2024-12-02 07:30:23,938 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1116 transitions. Word has length 520 [2024-12-02 07:30:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:23,939 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 1116 transitions. [2024-12-02 07:30:23,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1116 transitions. [2024-12-02 07:30:23,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-12-02 07:30:23,944 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:23,944 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:23,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:30:23,945 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:23,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:23,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1875742637, now seen corresponding path program 1 times [2024-12-02 07:30:23,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:23,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231385874] [2024-12-02 07:30:23,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:23,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:24,703 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-12-02 07:30:24,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:24,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231385874] [2024-12-02 07:30:24,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231385874] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:24,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:24,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:30:24,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056539217] [2024-12-02 07:30:24,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:24,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:30:24,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:24,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:30:24,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:24,706 INFO L87 Difference]: Start difference. First operand 691 states and 1116 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:24,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:24,756 INFO L93 Difference]: Finished difference Result 1379 states and 2229 transitions. [2024-12-02 07:30:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:30:24,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 520 [2024-12-02 07:30:24,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:24,762 INFO L225 Difference]: With dead ends: 1379 [2024-12-02 07:30:24,763 INFO L226 Difference]: Without dead ends: 691 [2024-12-02 07:30:24,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:24,765 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 0 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:24,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 931 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:30:24,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-12-02 07:30:24,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2024-12-02 07:30:24,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 536 states have (on average 1.5111940298507462) internal successors, (810), 536 states have internal predecessors, (810), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 07:30:24,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1114 transitions. [2024-12-02 07:30:24,827 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1114 transitions. Word has length 520 [2024-12-02 07:30:24,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:24,828 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 1114 transitions. [2024-12-02 07:30:24,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:24,828 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1114 transitions. [2024-12-02 07:30:24,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-12-02 07:30:24,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:24,833 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:24,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:30:24,833 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:24,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:24,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1347308012, now seen corresponding path program 1 times [2024-12-02 07:30:24,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:24,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436409270] [2024-12-02 07:30:24,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:24,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:27,001 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-12-02 07:30:27,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:27,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436409270] [2024-12-02 07:30:27,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436409270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:27,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:27,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:30:27,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156369433] [2024-12-02 07:30:27,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:27,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:30:27,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:27,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:30:27,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:30:27,004 INFO L87 Difference]: Start difference. First operand 691 states and 1114 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:27,958 INFO L93 Difference]: Finished difference Result 2356 states and 3793 transitions. [2024-12-02 07:30:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:30:27,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 521 [2024-12-02 07:30:27,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:27,970 INFO L225 Difference]: With dead ends: 2356 [2024-12-02 07:30:27,970 INFO L226 Difference]: Without dead ends: 1668 [2024-12-02 07:30:27,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:30:27,973 INFO L435 NwaCegarLoop]: 699 mSDtfsCounter, 925 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:27,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1728 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:30:27,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-12-02 07:30:28,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1269. [2024-12-02 07:30:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 988 states have (on average 1.508097165991903) internal successors, (1490), 990 states have internal predecessors, (1490), 276 states have call successors, (276), 4 states have call predecessors, (276), 4 states have return successors, (276), 274 states have call predecessors, (276), 276 states have call successors, (276) [2024-12-02 07:30:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2042 transitions. [2024-12-02 07:30:28,116 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2042 transitions. Word has length 521 [2024-12-02 07:30:28,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:28,117 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 2042 transitions. [2024-12-02 07:30:28,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2042 transitions. [2024-12-02 07:30:28,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-12-02 07:30:28,122 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:28,122 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:28,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:30:28,123 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:28,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:28,123 INFO L85 PathProgramCache]: Analyzing trace with hash -448581962, now seen corresponding path program 1 times [2024-12-02 07:30:28,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:28,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134689827] [2024-12-02 07:30:28,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:28,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-12-02 07:30:28,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:28,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134689827] [2024-12-02 07:30:28,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134689827] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:28,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:28,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:30:28,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31051239] [2024-12-02 07:30:28,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:28,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:30:28,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:28,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:30:28,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:28,359 INFO L87 Difference]: Start difference. First operand 1269 states and 2042 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:28,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:28,510 INFO L93 Difference]: Finished difference Result 3363 states and 5422 transitions. [2024-12-02 07:30:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:30:28,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 521 [2024-12-02 07:30:28,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:28,521 INFO L225 Difference]: With dead ends: 3363 [2024-12-02 07:30:28,521 INFO L226 Difference]: Without dead ends: 2097 [2024-12-02 07:30:28,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:30:28,525 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 395 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:28,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1273 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:30:28,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states. [2024-12-02 07:30:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 1473. [2024-12-02 07:30:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1192 states have (on average 1.5419463087248322) internal successors, (1838), 1194 states have internal predecessors, (1838), 276 states have call successors, (276), 4 states have call predecessors, (276), 4 states have return successors, (276), 274 states have call predecessors, (276), 276 states have call successors, (276) [2024-12-02 07:30:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2390 transitions. [2024-12-02 07:30:28,637 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2390 transitions. Word has length 521 [2024-12-02 07:30:28,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:28,638 INFO L471 AbstractCegarLoop]: Abstraction has 1473 states and 2390 transitions. [2024-12-02 07:30:28,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:28,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2390 transitions. [2024-12-02 07:30:28,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-12-02 07:30:28,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:28,641 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:28,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:30:28,642 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:28,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:28,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2131675118, now seen corresponding path program 1 times [2024-12-02 07:30:28,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:28,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315943998] [2024-12-02 07:30:28,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:28,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:30,175 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-12-02 07:30:30,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:30,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315943998] [2024-12-02 07:30:30,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315943998] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:30,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:30,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:30:30,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744811287] [2024-12-02 07:30:30,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:30,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:30:30,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:30,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:30:30,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:30:30,178 INFO L87 Difference]: Start difference. First operand 1473 states and 2390 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:31,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:31,249 INFO L93 Difference]: Finished difference Result 4371 states and 7071 transitions. [2024-12-02 07:30:31,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:30:31,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 522 [2024-12-02 07:30:31,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:31,265 INFO L225 Difference]: With dead ends: 4371 [2024-12-02 07:30:31,265 INFO L226 Difference]: Without dead ends: 2901 [2024-12-02 07:30:31,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:30:31,270 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 1067 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:31,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 1515 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:30:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2024-12-02 07:30:31,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 980. [2024-12-02 07:30:31,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 823 states have (on average 1.5492102065613609) internal successors, (1275), 823 states have internal predecessors, (1275), 152 states have call successors, (152), 4 states have call predecessors, (152), 4 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 07:30:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1579 transitions. [2024-12-02 07:30:31,430 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1579 transitions. Word has length 522 [2024-12-02 07:30:31,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:31,431 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1579 transitions. [2024-12-02 07:30:31,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1579 transitions. [2024-12-02 07:30:31,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-12-02 07:30:31,435 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:31,436 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:31,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:30:31,436 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:31,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:31,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1928339118, now seen corresponding path program 1 times [2024-12-02 07:30:31,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:31,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532979195] [2024-12-02 07:30:31,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:31,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-12-02 07:30:33,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:33,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532979195] [2024-12-02 07:30:33,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532979195] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:33,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:33,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:30:33,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862357504] [2024-12-02 07:30:33,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:33,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:30:33,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:33,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:30:33,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:30:33,691 INFO L87 Difference]: Start difference. First operand 980 states and 1579 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:34,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:34,777 INFO L93 Difference]: Finished difference Result 3516 states and 5645 transitions. [2024-12-02 07:30:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:30:34,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 522 [2024-12-02 07:30:34,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:34,789 INFO L225 Difference]: With dead ends: 3516 [2024-12-02 07:30:34,789 INFO L226 Difference]: Without dead ends: 2524 [2024-12-02 07:30:34,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:30:34,792 INFO L435 NwaCegarLoop]: 702 mSDtfsCounter, 1983 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:34,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 1891 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:30:34,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2024-12-02 07:30:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 1666. [2024-12-02 07:30:34,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1441 states have (on average 1.5544760582928523) internal successors, (2240), 1443 states have internal predecessors, (2240), 218 states have call successors, (218), 6 states have call predecessors, (218), 6 states have return successors, (218), 216 states have call predecessors, (218), 218 states have call successors, (218) [2024-12-02 07:30:34,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2676 transitions. [2024-12-02 07:30:34,995 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2676 transitions. Word has length 522 [2024-12-02 07:30:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:34,995 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2676 transitions. [2024-12-02 07:30:34,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-12-02 07:30:34,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2676 transitions. [2024-12-02 07:30:35,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-12-02 07:30:35,002 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:35,002 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:35,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:30:35,002 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:35,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:35,003 INFO L85 PathProgramCache]: Analyzing trace with hash 182987922, now seen corresponding path program 1 times [2024-12-02 07:30:35,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:35,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132970266] [2024-12-02 07:30:35,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:35,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 11175 trivial. 0 not checked. [2024-12-02 07:30:43,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:43,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132970266] [2024-12-02 07:30:43,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132970266] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:30:43,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746637749] [2024-12-02 07:30:43,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:43,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:30:43,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:30:43,043 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:30:43,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:30:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:43,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:30:43,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:30:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 3123 proven. 189 refuted. 0 times theorem prover too weak. 8088 trivial. 0 not checked. [2024-12-02 07:30:43,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:30:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 36 proven. 189 refuted. 0 times theorem prover too weak. 11175 trivial. 0 not checked. [2024-12-02 07:30:44,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746637749] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:30:44,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:30:44,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 6] total 13 [2024-12-02 07:30:44,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83240963] [2024-12-02 07:30:44,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:30:44,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:30:44,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:44,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:30:44,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:30:44,439 INFO L87 Difference]: Start difference. First operand 1666 states and 2676 transitions. Second operand has 13 states, 13 states have (on average 19.846153846153847) internal successors, (258), 13 states have internal predecessors, (258), 4 states have call successors, (215), 2 states have call predecessors, (215), 4 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2024-12-02 07:30:46,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:46,095 INFO L93 Difference]: Finished difference Result 7180 states and 11559 transitions. [2024-12-02 07:30:46,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 07:30:46,096 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 19.846153846153847) internal successors, (258), 13 states have internal predecessors, (258), 4 states have call successors, (215), 2 states have call predecessors, (215), 4 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) Word has length 522 [2024-12-02 07:30:46,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:46,107 INFO L225 Difference]: With dead ends: 7180 [2024-12-02 07:30:46,107 INFO L226 Difference]: Without dead ends: 5517 [2024-12-02 07:30:46,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 1042 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2024-12-02 07:30:46,110 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 3044 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:46,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3056 Valid, 2679 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 07:30:46,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2024-12-02 07:30:46,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 3626. [2024-12-02 07:30:46,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3317 states have (on average 1.5776303889056376) internal successors, (5233), 3319 states have internal predecessors, (5233), 294 states have call successors, (294), 14 states have call predecessors, (294), 14 states have return successors, (294), 292 states have call predecessors, (294), 294 states have call successors, (294) [2024-12-02 07:30:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 5821 transitions. [2024-12-02 07:30:46,291 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 5821 transitions. Word has length 522 [2024-12-02 07:30:46,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:46,291 INFO L471 AbstractCegarLoop]: Abstraction has 3626 states and 5821 transitions. [2024-12-02 07:30:46,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 19.846153846153847) internal successors, (258), 13 states have internal predecessors, (258), 4 states have call successors, (215), 2 states have call predecessors, (215), 4 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2024-12-02 07:30:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 5821 transitions. [2024-12-02 07:30:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-12-02 07:30:46,295 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:46,295 INFO L218 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:30:46,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:30:46,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8988d837-dd36-4345-8713-38bb8ad0c77a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:30:46,496 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:46,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:46,497 INFO L85 PathProgramCache]: Analyzing trace with hash -711368050, now seen corresponding path program 1 times [2024-12-02 07:30:46,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:46,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692292280] [2024-12-02 07:30:46,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:46,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms